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【判断题】
The speaker does not think that there are cultural differences.A.
正确
B.
错误
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【简答题】How did the author get rid of the bat?
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that is how
C.
what is that
D.
how it is that
【单选题】The number of workers in this factory _______ a lot this year. There were only a few workers in it two years ago.
A.
have increased
B.
has increased
C.
have risen
D.
has booked
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that how
C.
that it is how
D.
how it is that
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that how
C.
what is it
D.
how it is that
【简答题】According to the passage, the French workers were ______ .
【单选题】水泥是由几种矿物组成的混合物，改变熟料中矿物组成的相对含量，水泥的技术性能会随之变化，主要提高下列何种含量可以制得快硬高强水泥?
A.
硅酸三钙
B.
硅酸二钙
C.
铝酸三钙
D.
铁铝酸四钙
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